meson.build

   1 # Copyright © 2017-2020 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.52',
  29   default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c99', 'cpp_std=c++14']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 if get_option('layout') != 'mirror'
  38   error('`mirror` is the only build directory layout supported')
  39 endif
  40
  41 # Arguments for the preprocessor, put these in a separate array from the C and
  42 # C++ (cpp in meson terminology) arguments since they need to be added to the
  43 # default arguments for both C and C++.
  44 pre_args = [
  45   '-D__STDC_CONSTANT_MACROS',
  46   '-D__STDC_FORMAT_MACROS',
  47   '-D__STDC_LIMIT_MACROS',
  48   '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
  49   '-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"',
  50 ]
  51
  52 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  53 with_tests = get_option('build-tests')
  54 with_glx_read_only_text = get_option('glx-read-only-text')
  55 with_glx_direct = get_option('glx-direct')
  56 with_osmesa = get_option('osmesa')
  57 with_swr_arches = get_option('swr-arches')
  58 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = [
  62     'drm-shim',
  63     'etnaviv',
  64     'freedreno',
  65     'glsl',
  66     'intel',
  67     'intel-ui',
  68     'lima',
  69     'nir',
  70     'nouveau',
  71     'xvmc',
  72   ]
  73 endif
  74
  75 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  76 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  77
  78 dri_drivers_path = get_option('dri-drivers-path')
  79 if dri_drivers_path == ''
  80   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  81 endif
  82 dri_search_path = get_option('dri-search-path')
  83 if dri_search_path == ''
  84   dri_search_path = dri_drivers_path
  85 endif
  86
  87 with_gles1 = get_option('gles1')
  88 if with_gles1 == 'true'
  89   with_gles1 = 'enabled'
  90   warning('gles1 option "true" deprecated, please use "enabled" instead.')
  91 elif with_gles1 == 'false'
  92   with_gles1 = 'disabled'
  93   warning('gles1 option "false" deprecated, please use "disabled" instead.')
  94 endif
  95 with_gles2 = get_option('gles2')
  96 if with_gles2 == 'true'
  97   with_gles2 = 'enabled'
  98   warning('gles2 option "true" deprecated, please use "enabled" instead.')
  99 elif with_gles2 == 'false'
 100   with_gles2 = 'disabled'
 101   warning('gles2 option "false" deprecated, please use "disabled" instead.')
 102 endif
 103 if host_machine.system() == 'windows'
 104   if with_gles1 == 'auto'
 105     with_gles1 = 'disabled'
 106   endif
 107   if with_gles2 == 'auto'
 108     with_gles2 = 'disabled'
 109   endif
 110 endif
 111 with_opengl = get_option('opengl')
 112
 113 # Default shared glapi off for windows, on elsewhere.
 114 _sg = get_option('shared-glapi')
 115 if _sg == 'true'
 116   _sg = 'enabled'
 117   warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
 118 elif _sg == 'false'
 119   _sg = 'disabled'
 120   warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
 121 endif
 122 if _sg == 'auto'
 123   with_shared_glapi = host_machine.system() != 'windows'
 124 else
 125   with_shared_glapi = _sg == 'enabled'
 126 endif
 127
 128 # shared-glapi is required if at least two OpenGL APIs are being built
 129 if not with_shared_glapi
 130   if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
 131       (with_gles1 == 'enabled' and with_opengl) or
 132       (with_gles2 == 'enabled' and with_opengl))
 133     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 134   endif
 135   with_gles1 = 'disabled'
 136   with_gles2 = 'disabled'
 137 endif
 138
 139 # We require OpenGL for OpenGL ES
 140 if not with_opengl
 141   if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
 142     error('building OpenGL ES without OpenGL is not supported.')
 143   endif
 144   with_gles1 = 'disabled'
 145   with_gles2 = 'disabled'
 146 endif
 147
 148 with_gles1 = with_gles1 != 'disabled'
 149 with_gles2 = with_gles2 != 'disabled'
 150 with_any_opengl = with_opengl or with_gles1 or with_gles2
 151 # Only build shared_glapi if at least one OpenGL API is enabled
 152 with_shared_glapi = with_shared_glapi and with_any_opengl
 153
 154 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 155
 156 dri_drivers = get_option('dri-drivers')
 157 if dri_drivers.contains('auto')
 158   if system_has_kms_drm
 159     # TODO: PPC, Sparc
 160     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 161       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 162     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 163       dri_drivers = []
 164     else
 165       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 166             host_machine.cpu_family()))
 167     endif
 168   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 169     # only swrast would make sense here, but gallium swrast is a much better default
 170     dri_drivers = []
 171   else
 172     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 173           host_machine.system()))
 174   endif
 175 endif
 176
 177 with_dri_i915 = dri_drivers.contains('i915')
 178 with_dri_i965 = dri_drivers.contains('i965')
 179 with_dri_r100 = dri_drivers.contains('r100')
 180 with_dri_r200 = dri_drivers.contains('r200')
 181 with_dri_nouveau = dri_drivers.contains('nouveau')
 182 with_dri_swrast = dri_drivers.contains('swrast')
 183
 184 with_dri = dri_drivers.length() != 0
 185
 186 gallium_drivers = get_option('gallium-drivers')
 187 if gallium_drivers.contains('auto')
 188   if system_has_kms_drm
 189     # TODO: PPC, Sparc
 190     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 191       gallium_drivers = [
 192         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 193         'iris'
 194       ]
 195     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 196       gallium_drivers = [
 197         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 198         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 199       ]
 200     else
 201       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 202             host_machine.cpu_family()))
 203     endif
 204   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 205     gallium_drivers = ['swrast']
 206   else
 207     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 208           host_machine.system()))
 209   endif
 210 endif
 211 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 212 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 213 with_gallium_r300 = gallium_drivers.contains('r300')
 214 with_gallium_r600 = gallium_drivers.contains('r600')
 215 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 216 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 217 with_gallium_softpipe = gallium_drivers.contains('swrast')
 218 with_gallium_vc4 = gallium_drivers.contains('vc4')
 219 with_gallium_v3d = gallium_drivers.contains('v3d')
 220 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 221 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 222 with_gallium_tegra = gallium_drivers.contains('tegra')
 223 with_gallium_iris = gallium_drivers.contains('iris')
 224 with_gallium_i915 = gallium_drivers.contains('i915')
 225 with_gallium_svga = gallium_drivers.contains('svga')
 226 with_gallium_virgl = gallium_drivers.contains('virgl')
 227 with_gallium_swr = gallium_drivers.contains('swr')
 228 with_gallium_lima = gallium_drivers.contains('lima')
 229 with_gallium_zink = gallium_drivers.contains('zink')
 230
 231 with_gallium = gallium_drivers.length() != 0
 232
 233 if with_gallium and system_has_kms_drm
 234   _glx = get_option('glx')
 235   _egl = get_option('egl')
 236   if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
 237     with_dri = true
 238   endif
 239 endif
 240
 241 _vulkan_drivers = get_option('vulkan-drivers')
 242 if _vulkan_drivers.contains('auto')
 243   if system_has_kms_drm
 244     if host_machine.cpu_family().startswith('x86')
 245       _vulkan_drivers = ['amd', 'intel']
 246     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 247       _vulkan_drivers = []
 248     else
 249       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 250             host_machine.cpu_family()))
 251     endif
 252   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 253     # No vulkan driver supports windows or macOS currently
 254     _vulkan_drivers = []
 255   else
 256     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 257           host_machine.system()))
 258   endif
 259 endif
 260
 261 with_intel_vk = _vulkan_drivers.contains('intel')
 262 with_amd_vk = _vulkan_drivers.contains('amd')
 263 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 264 with_any_vk = _vulkan_drivers.length() != 0
 265
 266 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 267   error('Only one swrast provider can be built')
 268 endif
 269 if with_dri_i915 and with_gallium_i915
 270   error('Only one i915 provider can be built')
 271 endif
 272 if with_gallium_kmsro and not (with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost or with_gallium_lima)
 273   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 274 endif
 275 if with_gallium_tegra and not with_gallium_nouveau
 276   error('tegra driver requires nouveau driver')
 277 endif
 278
 279 if host_machine.system() == 'darwin'
 280   with_dri_platform = 'apple'
 281   pre_args += '-DBUILDING_MESA'
 282 elif ['windows', 'cygwin'].contains(host_machine.system())
 283   with_dri_platform = 'windows'
 284 elif system_has_kms_drm
 285   with_dri_platform = 'drm'
 286 else
 287   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 288   # assert here that one of those cases has been met.
 289   # FIXME: illumos ends up here as well
 290   with_dri_platform = 'none'
 291 endif
 292
 293 _platforms = get_option('platforms')
 294 if _platforms.contains('auto')
 295   if system_has_kms_drm
 296     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 297   elif ['darwin', 'cygwin'].contains(host_machine.system())
 298     _platforms = ['x11', 'surfaceless']
 299   elif ['haiku'].contains(host_machine.system())
 300     _platforms = ['haiku']
 301   elif host_machine.system() == 'windows'
 302     _platforms = ['windows']
 303   else
 304     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 305           host_machine.system()))
 306   endif
 307 endif
 308
 309 with_platform_android = _platforms.contains('android')
 310 with_platform_x11 = _platforms.contains('x11')
 311 with_platform_wayland = _platforms.contains('wayland')
 312 with_platform_drm = _platforms.contains('drm')
 313 with_platform_haiku = _platforms.contains('haiku')
 314 with_platform_surfaceless = _platforms.contains('surfaceless')
 315 with_platform_windows = _platforms.contains('windows')
 316
 317 if _platforms.length() != 0
 318   egl_native_platform = _platforms[0]
 319 endif
 320
 321 _xlib_lease = get_option('xlib-lease')
 322 if _xlib_lease == 'true'
 323   _xlib_lease = 'enabled'
 324   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 325 elif _xlib_lease == 'false'
 326   _xlib_lease = 'disabled'
 327   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 328 endif
 329 if _xlib_lease == 'auto'
 330   with_xlib_lease = with_platform_x11 and with_platform_drm
 331 else
 332   with_xlib_lease = _xlib_lease == 'enabled'
 333 endif
 334
 335 with_glx = get_option('glx')
 336 if with_glx == 'auto'
 337   if with_dri
 338     with_glx = 'dri'
 339   elif with_platform_haiku
 340     with_glx = 'disabled'
 341   elif host_machine.system() == 'windows'
 342     with_glx = 'disabled'
 343   elif with_gallium
 344     # Even when building just gallium drivers the user probably wants dri
 345     with_glx = 'dri'
 346   elif with_platform_x11 and with_any_opengl and not with_any_vk
 347     # The automatic behavior should not be to turn on xlib based glx when
 348     # building only vulkan drivers
 349     with_glx = 'xlib'
 350   else
 351     with_glx = 'disabled'
 352   endif
 353 endif
 354 if with_glx == 'dri'
 355    if with_gallium
 356       with_dri = true
 357    endif
 358 endif
 359
 360 if not (with_dri or with_gallium or with_glx != 'disabled')
 361   with_gles1 = false
 362   with_gles2 = false
 363   with_opengl = false
 364   with_any_opengl = false
 365   with_shared_glapi = false
 366 endif
 367
 368 _gbm = get_option('gbm')
 369 if _gbm == 'true'
 370   _gbm = 'enabled'
 371   warning('gbm option "true" deprecated, please use "enabled" instead.')
 372 elif _gbm == 'false'
 373   _gbm = 'disabled'
 374   warning('gbm option "false" deprecated, please use "disabled" instead.')
 375 endif
 376 if _gbm == 'auto'
 377   with_gbm = system_has_kms_drm and with_dri
 378 else
 379   with_gbm = _gbm == 'enabled'
 380 endif
 381 if with_gbm and not system_has_kms_drm
 382   error('GBM only supports DRM/KMS platforms')
 383 endif
 384
 385 _egl = get_option('egl')
 386 if _egl == 'true'
 387   _egl = 'enabled'
 388   warning('egl option "true" deprecated, please use "enabled" instead.')
 389 elif _egl == 'false'
 390   _egl = 'disabled'
 391   warning('egl option "false" deprecated, please use "disabled" instead.')
 392 endif
 393 if _egl == 'auto'
 394   with_egl = (
 395     not ['darwin', 'windows'].contains(host_machine.system()) and
 396     with_dri and with_shared_glapi and _platforms.length() != 0
 397   )
 398 elif _egl == 'enabled'
 399   if not with_dri
 400     error('EGL requires dri')
 401   elif not with_shared_glapi
 402     error('EGL requires shared-glapi')
 403   elif _platforms.length() == 0
 404     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
 405   elif not ['disabled', 'dri'].contains(with_glx)
 406     error('EGL requires dri, but a GLX is being built without dri')
 407   elif ['darwin', 'windows'].contains(host_machine.system())
 408     error('EGL is not available on Windows or MacOS')
 409   endif
 410   with_egl = true
 411 else
 412   with_egl = false
 413 endif
 414
 415 if with_egl and not (with_platform_drm or with_platform_surfaceless or with_platform_android)
 416   if with_gallium_radeonsi
 417     error('RadeonSI requires the drm, surfaceless or android platform when using EGL')
 418   endif
 419   if with_gallium_virgl
 420     error('Virgl requires the drm, surfaceless or android platform when using EGL')
 421   endif
 422 endif
 423
 424 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 425 if host_machine.system() != 'windows' and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 426   pre_args += '-DUSE_ELF_TLS'
 427 endif
 428
 429 if with_glx != 'disabled'
 430   if not (with_platform_x11 and with_any_opengl)
 431     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 432   elif with_glx == 'gallium-xlib'
 433     if not with_gallium
 434       error('Gallium-xlib based GLX requires at least one gallium driver')
 435     elif not with_gallium_softpipe
 436       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 437     elif with_dri
 438       error('gallium-xlib conflicts with any dri driver')
 439     endif
 440   elif with_glx == 'xlib'
 441     if with_dri
 442       error('xlib conflicts with any dri driver')
 443     endif
 444   elif with_glx == 'dri'
 445     if not with_shared_glapi
 446       error('dri based GLX requires shared-glapi')
 447     endif
 448   endif
 449 endif
 450
 451 with_glvnd = get_option('glvnd')
 452 if with_glvnd
 453   if with_platform_windows
 454     error('glvnd cannot be used on Windows')
 455   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 456     error('Cannot build glvnd support for GLX that is not DRI based.')
 457   elif with_glx == 'disabled' and not with_egl
 458     error('glvnd requires DRI based GLX and/or EGL')
 459   endif
 460   if get_option('egl-lib-suffix') != ''
 461     error('''EGL lib suffix can't be used with libglvnd''')
 462   endif
 463 endif
 464
 465 if with_vulkan_icd_dir == ''
 466   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 467 endif
 468
 469 # GNU/Hurd includes egl_dri2, without drm.
 470 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 471   host_machine.system() == 'gnu')
 472 _dri3 = get_option('dri3')
 473 if _dri3 == 'true'
 474   _dri3 = 'enabled'
 475   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 476 elif _dri3 == 'false'
 477   _dri3 = 'disabled'
 478   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 479 endif
 480 if _dri3 == 'auto'
 481   with_dri3 = system_has_kms_drm and with_dri2
 482 else
 483   with_dri3 = _dri3 == 'enabled'
 484 endif
 485
 486 if with_any_vk and (with_platform_x11 and not with_dri3)
 487   error('Vulkan drivers require dri3 for X11 support')
 488 endif
 489 if with_dri
 490   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 491     error('building dri drivers require at least one windowing system or classic osmesa')
 492   endif
 493 endif
 494
 495 _vdpau = get_option('gallium-vdpau')
 496 if _vdpau == 'true'
 497   _vdpau = 'enabled'
 498   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 499 elif _vdpau == 'false'
 500   _vdpau = 'disabled'
 501   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 502 endif
 503 if not system_has_kms_drm
 504   if _vdpau == 'enabled'
 505     error('VDPAU state tracker can only be build on unix-like OSes.')
 506   else
 507     _vdpau = 'disabled'
 508   endif
 509 elif not with_platform_x11
 510   if _vdpau == 'enabled'
 511     error('VDPAU state tracker requires X11 support.')
 512   else
 513     _vdpau = 'disabled'
 514   endif
 515 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 516           with_gallium_nouveau)
 517   if _vdpau == 'enabled'
 518     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 519   else
 520     _vdpau = 'disabled'
 521   endif
 522 endif
 523 dep_vdpau = null_dep
 524 with_gallium_vdpau = false
 525 if _vdpau != 'disabled'
 526   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 527   if dep_vdpau.found()
 528     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 529     with_gallium_vdpau = true
 530   endif
 531 endif
 532
 533 if with_gallium_vdpau
 534   pre_args += '-DHAVE_ST_VDPAU'
 535 endif
 536 vdpau_drivers_path = get_option('vdpau-libs-path')
 537 if vdpau_drivers_path == ''
 538   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 539 endif
 540
 541 if with_gallium_zink
 542   dep_vulkan = dependency('vulkan')
 543 endif
 544
 545 _xvmc = get_option('gallium-xvmc')
 546 if _xvmc == 'true'
 547   _xvmc = 'enabled'
 548   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 549 elif _xvmc == 'false'
 550   _xvmc = 'disabled'
 551   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 552 endif
 553 if not system_has_kms_drm
 554   if _xvmc == 'enabled'
 555     error('XVMC state tracker can only be build on unix-like OSes.')
 556   else
 557     _xvmc = 'disabled'
 558   endif
 559 elif not with_platform_x11
 560   if _xvmc == 'enabled'
 561     error('XVMC state tracker requires X11 support.')
 562   else
 563     _xvmc = 'disabled'
 564   endif
 565 elif not (with_gallium_r600 or with_gallium_nouveau)
 566   if _xvmc == 'enabled'
 567     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 568   else
 569     _xvmc = 'disabled'
 570   endif
 571 endif
 572 dep_xvmc = null_dep
 573 dep_xv = null_dep
 574 with_gallium_xvmc = false
 575 if _xvmc != 'disabled'
 576   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 577   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 578   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 579 endif
 580
 581 xvmc_drivers_path = get_option('xvmc-libs-path')
 582 if xvmc_drivers_path == ''
 583   xvmc_drivers_path = get_option('libdir')
 584 endif
 585
 586 _omx = get_option('gallium-omx')
 587 if not system_has_kms_drm
 588   if ['auto', 'disabled'].contains(_omx)
 589     _omx = 'disabled'
 590   else
 591     error('OMX state tracker can only be built on unix-like OSes.')
 592   endif
 593 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 594   if ['auto', 'disabled'].contains(_omx)
 595     _omx = 'disabled'
 596   else
 597     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 598   endif
 599 endif
 600 with_gallium_omx = _omx
 601 dep_omx = null_dep
 602 dep_omx_other = []
 603 if ['auto', 'bellagio'].contains(_omx)
 604   dep_omx = dependency(
 605     'libomxil-bellagio', required : _omx == 'bellagio'
 606   )
 607   if dep_omx.found()
 608     with_gallium_omx = 'bellagio'
 609   endif
 610 endif
 611 if ['auto', 'tizonia'].contains(_omx)
 612   if with_dri and with_egl
 613     dep_omx = dependency(
 614       'libtizonia', version : '>= 0.10.0',
 615       required : _omx == 'tizonia',
 616     )
 617     dep_omx_other = [
 618       dependency('libtizplatform', required : _omx == 'tizonia'),
 619       dependency('tizilheaders', required : _omx == 'tizonia'),
 620     ]
 621     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 622       with_gallium_omx = 'tizonia'
 623     endif
 624   elif _omx == 'tizonia'
 625     error('OMX-Tizonia state tracker requires dri and egl')
 626   endif
 627 endif
 628 if _omx == 'auto'
 629   with_gallium_omx = 'disabled'
 630 else
 631   with_gallium_omx = _omx
 632 endif
 633
 634 pre_args += [
 635   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 636   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 637 ]
 638
 639
 640 omx_drivers_path = get_option('omx-libs-path')
 641
 642 if with_gallium_omx != 'disabled'
 643   # Figure out where to put the omx driver.
 644   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 645   # argument to meson's get_pkgconfig_variable method.
 646   if omx_drivers_path == ''
 647     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 648     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 649     if _omx_libdir == get_option('libdir')
 650       omx_drivers_path = _omx_drivers_dir
 651     else
 652       _omx_base_dir = []
 653       # This will fail on windows. Does OMX run on windows?
 654       _omx_libdir = _omx_libdir.split('/')
 655       _omx_drivers_dir = _omx_drivers_dir.split('/')
 656       foreach o : _omx_drivers_dir
 657         if not _omx_libdir.contains(o)
 658           _omx_base_dir += o
 659         endif
 660       endforeach
 661       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 662     endif
 663   endif
 664 endif
 665
 666 _va = get_option('gallium-va')
 667 if _va == 'true'
 668   _va = 'enabled'
 669   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 670 elif _va == 'false'
 671   _va = 'disabled'
 672   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 673 endif
 674 if not system_has_kms_drm
 675   if _va == 'enabled'
 676     error('VA state tracker can only be built on unix-like OSes.')
 677   else
 678     _va = 'disabled'
 679   endif
 680 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 681   if _va == 'enabled'
 682     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 683   else
 684     _va = 'disabled'
 685   endif
 686 endif
 687 with_gallium_va = false
 688 dep_va = null_dep
 689 if _va != 'disabled'
 690   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 691   if dep_va.found()
 692     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 693     with_gallium_va = true
 694   endif
 695 endif
 696
 697 va_drivers_path = get_option('va-libs-path')
 698 if va_drivers_path == ''
 699   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 700 endif
 701
 702 _xa = get_option('gallium-xa')
 703 if _xa == 'true'
 704   _xa = 'enabled'
 705   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 706 elif _xa == 'false'
 707   _xa = 'disabled'
 708   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 709 endif
 710 if not system_has_kms_drm
 711   if _xa == 'enabled'
 712     error('XA state tracker can only be built on unix-like OSes.')
 713   else
 714     _xa = 'disabled'
 715   endif
 716 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 717           or with_gallium_svga)
 718   if _xa == 'enabled'
 719     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 720   else
 721     _xa = 'disabled'
 722   endif
 723 endif
 724 with_gallium_xa = _xa != 'disabled'
 725
 726 d3d_drivers_path = get_option('d3d-drivers-path')
 727 if d3d_drivers_path == ''
 728   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 729 endif
 730
 731 with_gallium_st_nine =  get_option('gallium-nine')
 732 if with_gallium_st_nine
 733   if not with_gallium_softpipe
 734     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 735   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 736             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 737             or with_gallium_iris)
 738     error('The nine state tracker requires at least one non-swrast gallium driver.')
 739   endif
 740   if not with_dri3
 741     error('Using nine with wine requires dri3')
 742   endif
 743 endif
 744 _power8 = get_option('power8')
 745 if _power8 == 'true'
 746   _power8 = 'enabled'
 747   warning('power8 option "true" deprecated, please use "enabled" instead.')
 748 elif _power8 == 'disabled'
 749   _power8 = 'disabled'
 750   warning('power8 option "false" deprecated, please use "disabled" instead.')
 751 endif
 752 if _power8 != 'disabled'
 753   # on old versions of meson the cpu family would return as ppc64le on little
 754   # endian power8, this was changed in 0.48 such that the family would always
 755   # be ppc64 regardless of endianness, and then the machine.endian() value
 756   # should be checked. Since we support versions < 0.48 we need to use
 757   # startswith.
 758   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 759     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 760       error('Altivec is not supported with gcc version < 4.8.')
 761     endif
 762     if cc.compiles('''
 763         #include <altivec.h>
 764         int main() {
 765           vector unsigned char r;
 766           vector unsigned int v = vec_splat_u32 (1);
 767           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 768           return 0;
 769         }''',
 770         args : '-mpower8-vector',
 771         name : 'POWER8 intrinsics')
 772       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 773     elif get_option('power8') == 'enabled'
 774       error('POWER8 intrinsic support required but not found.')
 775     endif
 776   endif
 777 endif
 778
 779 _opencl = get_option('gallium-opencl')
 780 clover_cpp_std = []
 781 if _opencl != 'disabled'
 782   if not with_gallium
 783     error('OpenCL Clover implementation requires at least one gallium driver.')
 784   endif
 785
 786   dep_clc = dependency('libclc')
 787   with_gallium_opencl = true
 788   with_opencl_icd = _opencl == 'icd'
 789
 790   with_opencl_spirv = get_option('opencl-spirv')
 791   if with_opencl_spirv
 792     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 793     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 794     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 795   else
 796     dep_spirv_tools = null_dep
 797     dep_llvmspirvlib = null_dep
 798   endif
 799
 800   if host_machine.cpu_family().startswith('ppc') and cpp.compiles('''
 801       #if !defined(__VEC__) || !defined(__ALTIVEC__)
 802       #error "AltiVec not enabled"
 803       #endif''',
 804       name : 'Altivec')
 805     clover_cpp_std += ['cpp_std=gnu++11']
 806   endif
 807 else
 808   dep_clc = null_dep
 809   dep_spirv_tools = null_dep
 810   dep_llvmspirvlib = null_dep
 811   with_gallium_opencl = false
 812   with_opencl_icd = false
 813   with_opencl_spirv = false
 814 endif
 815
 816 gl_pkgconfig_c_flags = []
 817 if with_platform_x11
 818   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 819     pre_args += '-DHAVE_X11_PLATFORM'
 820   endif
 821   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 822     pre_args += '-DUSE_XSHM'
 823   else
 824     pre_args += '-DGLX_INDIRECT_RENDERING'
 825     if with_glx_direct
 826       pre_args += '-DGLX_DIRECT_RENDERING'
 827     endif
 828     if with_dri_platform == 'drm'
 829       pre_args += '-DGLX_USE_DRM'
 830     elif with_dri_platform == 'apple'
 831       pre_args += '-DGLX_USE_APPLEGL'
 832     elif with_dri_platform == 'windows'
 833       pre_args += '-DGLX_USE_WINDOWSGL'
 834     endif
 835   endif
 836 else
 837   pre_args += '-DEGL_NO_X11'
 838   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 839 endif
 840 if with_platform_drm
 841   if with_egl and not with_gbm
 842     error('EGL drm platform requires gbm')
 843   endif
 844   pre_args += '-DHAVE_DRM_PLATFORM'
 845 endif
 846 if with_platform_surfaceless
 847   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 848 endif
 849 if with_platform_android
 850   dep_android = [
 851     dependency('cutils'),
 852     dependency('hardware'),
 853     dependency('sync'),
 854   ]
 855   if with_gallium
 856     dep_android += dependency('backtrace')
 857   endif
 858   if get_option('platform-sdk-version') >= 26
 859     dep_android += dependency('nativewindow')
 860   endif
 861   pre_args += '-DHAVE_ANDROID_PLATFORM'
 862 endif
 863 if with_platform_haiku
 864   pre_args += '-DHAVE_HAIKU_PLATFORM'
 865 endif
 866
 867 prog_python = import('python').find_installation('python3')
 868 has_mako = run_command(
 869   prog_python, '-c',
 870   '''
 871 from distutils.version import StrictVersion
 872 import mako
 873 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 874   ''')
 875 if has_mako.returncode() != 0
 876   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 877 endif
 878
 879 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 880   error('When using GCC, version 4.4.6 or later is required.')
 881 endif
 882
 883 # Support systems without ETIME (e.g. FreeBSD)
 884 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 885   pre_args += '-DETIME=ETIMEDOUT'
 886 endif
 887
 888 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 889 if get_option('buildtype') == 'debug'
 890   pre_args += '-DDEBUG'
 891 endif
 892
 893 with_shader_cache = false
 894 _shader_cache = get_option('shader-cache')
 895 if _shader_cache == 'true'
 896   _shader_cache = 'enabled'
 897   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 898 elif _shader_cache == 'false'
 899   _shader_cache = 'disabled'
 900   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 901 endif
 902 if _shader_cache != 'disabled'
 903   if host_machine.system() == 'windows'
 904     if _shader_cache == 'enabled'
 905       error('Shader Cache does not currently work on Windows')
 906     endif
 907   else
 908     pre_args += '-DENABLE_SHADER_CACHE'
 909     with_shader_cache = true
 910   endif
 911 endif
 912 if with_amd_vk and not with_shader_cache
 913   error('Radv requires shader cache support')
 914 endif
 915
 916 # Check for GCC style builtins
 917 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 918              'ffsll', 'popcount', 'popcountll', 'unreachable']
 919   if cc.has_function(b)
 920     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 921   endif
 922 endforeach
 923
 924 # check for GCC __attribute__
 925 _attributes = [
 926   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 927   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 928 ]
 929 foreach a : cc.get_supported_function_attributes(_attributes)
 930   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 931 endforeach
 932 if cc.has_function_attribute('visibility:hidden')
 933   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 934 endif
 935 if cc.compiles('__uint128_t foo(void) { return 0; }',
 936                name : '__uint128_t')
 937   pre_args += '-DHAVE_UINT128'
 938 endif
 939
 940 # TODO: this is very incomplete
 941 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 942   pre_args += '-D_GNU_SOURCE'
 943 elif host_machine.system() == 'sunos'
 944   pre_args += '-D__EXTENSIONS__'
 945 elif host_machine.system() == 'windows'
 946   pre_args += [
 947     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 948     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 949     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 950   ]
 951   if cc.get_id() == 'msvc'
 952     pre_args += [
 953       '-DVC_EXTRALEAN',
 954       '-D_CRT_SECURE_NO_WARNINGS',
 955       '-D_CRT_SECURE_NO_DEPRECATE',
 956       '-D_SCL_SECURE_NO_WARNINGS',
 957       '-D_SCL_SECURE_NO_DEPRECATE',
 958       '-D_ALLOW_KEYWORD_MACROS',
 959       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 960     ]
 961   else
 962     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 963   endif
 964 endif
 965
 966 # Check for generic C arguments
 967 c_args = []
 968 c_msvc_compat_args = []
 969 no_override_init_args = []
 970 cpp_args = []
 971 cpp_msvc_compat_args = []
 972 if cc.get_id() == 'msvc'
 973   foreach a : ['/wd4018',  # signed/unsigned mismatch
 974                '/wd4056',  # overflow in floating-point constant arithmetic
 975                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 976                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 977                '/wd4305',  # trancation from 'type1' to 'type2'
 978                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 979                '/wd4756',  # overflow in constant arithmetic
 980                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 981                '/wd4996',  # disabled deprecated POSIX name warnings
 982                '/wd4291',  # no matching operator delete found
 983                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 984                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 985                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 986               ]
 987     if cc.has_argument(a)
 988       c_args += a
 989     endif
 990     if cpp.has_argument(a)
 991       cpp_args += a
 992     endif
 993   endforeach
 994   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 995     c_args += '-Wno-microsoft-enum-value'
 996     cpp_args += '-Wno-microsoft-enum-value'
 997   endif
 998 else
 999   _trial = [
1000     '-Werror=implicit-function-declaration',
1001     '-Werror=missing-prototypes',
1002     '-Werror=return-type',
1003     '-Werror=empty-body',
1004     '-Werror=incompatible-pointer-types',
1005     '-Werror=int-conversion',
1006     '-Wno-missing-field-initializers',
1007     '-Wno-format-truncation',
1008     '-fno-math-errno',
1009     '-fno-trapping-math',
1010     '-Qunused-arguments',
1011     '-fno-common',
1012   ]
1013   # MinGW chokes on format specifiers and I can't get it all working
1014   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1015     _trial += ['-Werror=format', '-Wformat-security']
1016   endif
1017   foreach a : _trial
1018     if cc.has_argument(a)
1019       c_args += a
1020     endif
1021   endforeach
1022
1023   _trial = [
1024     '-Werror=return-type',
1025     '-Werror=empty-body',
1026     '-Wno-non-virtual-dtor',
1027     '-Wno-missing-field-initializers',
1028     '-Wno-format-truncation',
1029     '-fno-math-errno',
1030     '-fno-trapping-math',
1031     '-Qunused-arguments',
1032     # Some classes use custom new operator which zeroes memory, however
1033     # gcc does aggressive dead-store elimination which threats all writes
1034     # to the memory before the constructor as "dead stores".
1035     # For now we disable this optimization.
1036     '-flifetime-dse=1',
1037   ]
1038   # MinGW chokes on format specifiers and I can't get it all working
1039   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1040     _trial += ['-Werror=format', '-Wformat-security']
1041   endif
1042   foreach a : _trial
1043     if cpp.has_argument(a)
1044       cpp_args += a
1045     endif
1046   endforeach
1047
1048   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1049     if cc.has_argument(a)
1050       no_override_init_args += a
1051     endif
1052   endforeach
1053
1054   # Check for C and C++ arguments for MSVC compatibility. These are only used
1055   # in parts of the mesa code base that need to compile with MSVC, mainly
1056   # common code
1057   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1058     if cc.has_argument(a)
1059       c_msvc_compat_args += a
1060     endif
1061     if cpp.has_argument(a)
1062       cpp_msvc_compat_args += a
1063     endif
1064   endforeach
1065 endif
1066
1067 # set linker arguments
1068 if host_machine.system() == 'windows'
1069   if cc.get_id() == 'msvc'
1070     add_project_link_arguments(
1071       '/fixed:no',
1072       '/dynamicbase',
1073       '/nxcompat',
1074       language : ['c', 'cpp'],
1075     )
1076     if get_option('buildtype') != 'debug'
1077       add_project_link_arguments(
1078         '/incremental:no',
1079         language : ['c', 'cpp'],
1080       )
1081     endif
1082   else
1083     add_project_link_arguments(
1084       '-Wl,--nxcompat',
1085       '-Wl,--dynamicbase',
1086       '-static-libgcc',
1087       '-static-libstdc++',
1088       language : ['c', 'cpp'],
1089     )
1090   endif
1091 endif
1092
1093 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1094   pre_args += '-DUSE_SSE41'
1095   with_sse41 = true
1096   sse41_args = ['-msse4.1']
1097
1098   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1099   # that's not guaranteed
1100   if host_machine.cpu_family() == 'x86'
1101     sse41_args += '-mstackrealign'
1102   endif
1103 else
1104   with_sse41 = false
1105   sse41_args = []
1106 endif
1107
1108 # Check for GCC style atomics
1109 dep_atomic = null_dep
1110
1111 if cc.compiles('''#include <stdint.h>
1112                   int main() {
1113                     struct {
1114                       uint64_t *v;
1115                     } x;
1116                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1117                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1118
1119                   }''',
1120                name : 'GCC atomic builtins')
1121   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1122
1123   # Not all atomic calls can be turned into lock-free instructions, in which
1124   # GCC will make calls into the libatomic library. Check whether we need to
1125   # link with -latomic.
1126   #
1127   # This can happen for 64-bit atomic operations on 32-bit architectures such
1128   # as ARM.
1129   if not cc.links('''#include <stdint.h>
1130                      int main() {
1131                        struct {
1132                          uint64_t *v;
1133                        } x;
1134                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1135                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1136                      }''',
1137                   name : 'GCC atomic builtins required -latomic')
1138     dep_atomic = cc.find_library('atomic')
1139   endif
1140 endif
1141 if not cc.links('''#include <stdint.h>
1142                    uint64_t v;
1143                    int main() {
1144                      return __sync_add_and_fetch(&v, (uint64_t)1);
1145                    }''',
1146                 dependencies : dep_atomic,
1147                 name : 'GCC 64bit atomics')
1148   pre_args += '-DMISSING_64BIT_ATOMICS'
1149 endif
1150
1151 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1152
1153 # TODO: shared/static? Is this even worth doing?
1154
1155 with_asm_arch = ''
1156 if host_machine.cpu_family() == 'x86'
1157   if system_has_kms_drm or host_machine.system() == 'gnu'
1158     with_asm_arch = 'x86'
1159     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1160                  '-DUSE_SSE_ASM']
1161
1162     if with_glx_read_only_text
1163       pre_args += ['-DGLX_X86_READONLY_TEXT']
1164     endif
1165   endif
1166 elif host_machine.cpu_family() == 'x86_64'
1167   if system_has_kms_drm
1168     with_asm_arch = 'x86_64'
1169     pre_args += ['-DUSE_X86_64_ASM']
1170   endif
1171 elif host_machine.cpu_family() == 'arm'
1172   if system_has_kms_drm
1173     with_asm_arch = 'arm'
1174     pre_args += ['-DUSE_ARM_ASM']
1175   endif
1176 elif host_machine.cpu_family() == 'aarch64'
1177   if system_has_kms_drm
1178     with_asm_arch = 'aarch64'
1179     pre_args += ['-DUSE_AARCH64_ASM']
1180   endif
1181 elif host_machine.cpu_family() == 'sparc64'
1182   if system_has_kms_drm
1183     with_asm_arch = 'sparc'
1184     pre_args += ['-DUSE_SPARC_ASM']
1185   endif
1186 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1187   if system_has_kms_drm
1188     with_asm_arch = 'ppc64le'
1189     pre_args += ['-DUSE_PPC64LE_ASM']
1190   endif
1191 endif
1192
1193 # Check for standard headers and functions
1194 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1195   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1196   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1197   pre_args += '-DMAJOR_IN_SYSMACROS'
1198 endif
1199 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1200   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1201   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1202   pre_args += '-DMAJOR_IN_MKDEV'
1203 endif
1204
1205 if not ['linux'].contains(host_machine.system())
1206   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1207   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1208     pre_args += '-DHAVE_SYS_SYSCTL_H'
1209   endif
1210 endif
1211
1212 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1213   if cc.check_header(h)
1214     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1215   endif
1216 endforeach
1217
1218 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1219   if cc.has_function(f)
1220     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1221   endif
1222 endforeach
1223
1224 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1225                         args : '-D_GNU_SOURCE')
1226    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1227 elif with_tools.contains('intel')
1228   error('Intel tools require the program_invocation_name variable')
1229 endif
1230
1231 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1232 # This means that this check will succeed, but then compilation will later
1233 # fail. MSVC doesn't have this function at all, so only check for it on
1234 # non-windows platforms.
1235 if host_machine.system() != 'windows'
1236   if cc.has_function('posix_memalign')
1237     pre_args += '-DHAVE_POSIX_MEMALIGN'
1238   endif
1239 endif
1240
1241 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1242    #include <dirent.h>''')
1243    pre_args += '-DHAVE_DIRENT_D_TYPE'
1244 endif
1245
1246 # strtod locale support
1247 if cc.links('''
1248     #define _GNU_SOURCE
1249     #include <stdlib.h>
1250     #include <locale.h>
1251     #ifdef HAVE_XLOCALE_H
1252     #include <xlocale.h>
1253     #endif
1254     int main() {
1255       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1256       const char *s = "1.0";
1257       char *end;
1258       double d = strtod_l(s, end, loc);
1259       float f = strtof_l(s, end, loc);
1260       freelocale(loc);
1261       return 0;
1262     }''',
1263     args : pre_args,
1264     name : 'strtod has locale support')
1265   pre_args += '-DHAVE_STRTOD_L'
1266 endif
1267
1268 # Check for some linker flags
1269 ld_args_bsymbolic = []
1270 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1271   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1272 endif
1273 ld_args_gc_sections = []
1274 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1275             args : '-Wl,--gc-sections', name : 'gc-sections')
1276   ld_args_gc_sections += '-Wl,--gc-sections'
1277 endif
1278 with_ld_version_script = false
1279 if cc.links('int main() { return 0; }',
1280             args : '-Wl,--version-script=@0@'.format(
1281               join_paths(meson.source_root(), 'build-support/conftest.map')),
1282             name : 'version-script')
1283   with_ld_version_script = true
1284 endif
1285 with_ld_dynamic_list = false
1286 if cc.links('int main() { return 0; }',
1287             args : '-Wl,--dynamic-list=@0@'.format(
1288               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1289             name : 'dynamic-list')
1290   with_ld_dynamic_list = true
1291 endif
1292
1293 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1294
1295 # check for dl support
1296 dep_dl = null_dep
1297 if not cc.has_function('dlopen')
1298   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1299 endif
1300 if cc.has_function('dladdr', dependencies : dep_dl)
1301   # This is really only required for megadrivers
1302   pre_args += '-DHAVE_DLADDR'
1303 endif
1304
1305 if cc.has_function('dl_iterate_phdr')
1306   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1307 elif with_intel_vk
1308   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1309 elif with_dri_i965 and with_shader_cache
1310   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1311 endif
1312
1313 # Determine whether or not the rt library is needed for time functions
1314 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1315   dep_clock = null_dep
1316 else
1317   dep_clock = cc.find_library('rt')
1318 endif
1319
1320 # TODO: some of these may be conditional
1321 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1322 pre_args += '-DHAVE_ZLIB'
1323
1324 _zstd = get_option('zstd')
1325 if _zstd == 'true'
1326   _zstd = 'enabled'
1327   warning('zstd option "true" deprecated, please use "enabled" instead.')
1328 elif _zstd == 'false'
1329   _zstd = 'disabled'
1330   warning('zstd option "false" deprecated, please use "disabled" instead.')
1331 endif
1332 if _zstd != 'disabled'
1333   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1334   if dep_zstd.found()
1335     pre_args += '-DHAVE_ZSTD'
1336   endif
1337 else
1338   dep_zstd = null_dep
1339 endif
1340
1341 dep_thread = dependency('threads')
1342 if dep_thread.found() and host_machine.system() != 'windows'
1343   pre_args += '-DHAVE_PTHREAD'
1344   if cc.has_function(
1345       'pthread_setaffinity_np',
1346       dependencies : dep_thread,
1347       prefix : '#include <pthread.h>',
1348       args : '-D_GNU_SOURCE')
1349     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1350   endif
1351   if cc.has_function(
1352       'pthread_setaffinity_np',
1353       dependencies : dep_thread,
1354       prefix : '#include <pthread_np.h>')
1355     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1356   endif
1357 endif
1358 if host_machine.system() != 'windows'
1359   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1360 else
1361   dep_expat = null_dep
1362 endif
1363 # this only exists on linux so either this is linux and it will be found, or
1364 # it's not linux and wont
1365 dep_m = cc.find_library('m', required : false)
1366
1367 # Check for libdrm. Various drivers have different libdrm version requirements,
1368 # but we always want to use the same version for all libdrm modules. That means
1369 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1370 # bar are both on use 2.4.3 for both of them
1371 dep_libdrm_amdgpu = null_dep
1372 dep_libdrm_radeon = null_dep
1373 dep_libdrm_nouveau = null_dep
1374 dep_libdrm_intel = null_dep
1375
1376 _drm_amdgpu_ver = '2.4.100'
1377 _drm_radeon_ver = '2.4.71'
1378 _drm_nouveau_ver = '2.4.66'
1379 _drm_intel_ver = '2.4.75'
1380 _drm_ver = '2.4.81'
1381
1382 _libdrm_checks = [
1383   ['intel', with_dri_i915 or with_gallium_i915],
1384   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1385   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1386               with_gallium_r300 or with_gallium_r600)],
1387   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1388 ]
1389
1390 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1391 # library.
1392 if with_gallium_vc4
1393   _drm_ver = '2.4.89'
1394 endif
1395
1396 # etnaviv only needs core libdrm
1397 if with_gallium_etnaviv
1398   _drm_ver = '2.4.89'
1399 endif
1400
1401 # Loop over the enables versions and get the highest libdrm requirement for all
1402 # active drivers.
1403 _drm_blame = ''
1404 foreach d : _libdrm_checks
1405   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1406   if d[1] and ver.version_compare('>' + _drm_ver)
1407     _drm_ver = ver
1408     _drm_blame = d[0]
1409   endif
1410 endforeach
1411 if _drm_blame != ''
1412   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1413 endif
1414
1415 # Then get each libdrm module
1416 foreach d : _libdrm_checks
1417   if d[1]
1418     set_variable(
1419       'dep_libdrm_' + d[0],
1420       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1421     )
1422   endif
1423 endforeach
1424
1425 with_gallium_drisw_kms = false
1426 dep_libdrm = dependency(
1427   'libdrm', version : '>=' + _drm_ver,
1428   # GNU/Hurd includes egl_dri2, without drm.
1429   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1430 )
1431 if dep_libdrm.found()
1432   pre_args += '-DHAVE_LIBDRM'
1433   if with_dri_platform == 'drm' and with_dri
1434     with_gallium_drisw_kms = true
1435   endif
1436 endif
1437
1438 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1439 llvm_optional_modules = ['coroutines']
1440 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1441   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1442   if with_gallium_r600
1443     llvm_modules += 'asmparser'
1444   endif
1445 endif
1446 if with_gallium_opencl
1447   llvm_modules += [
1448     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1449     'lto', 'option', 'objcarcopts', 'profiledata',
1450   ]
1451 endif
1452
1453 if with_amd_vk or with_gallium_radeonsi
1454   _llvm_version = '>= 8.0.0'
1455 elif with_gallium_swr
1456   _llvm_version = '>= 6.0.0'
1457 else
1458   _llvm_version = '>= 3.9.0'
1459 endif
1460
1461 _shared_llvm = get_option('shared-llvm')
1462 if _shared_llvm == 'true'
1463   _shared_llvm = 'enabled'
1464   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1465 elif _shared_llvm == 'false'
1466   _shared_llvm = 'disabled'
1467   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1468 endif
1469 if _shared_llvm == 'auto'
1470   _shared_llvm = (host_machine.system() != 'windows')
1471 else
1472   _shared_llvm = (_shared_llvm == 'enabled')
1473 endif
1474 _llvm = get_option('llvm')
1475 if _llvm == 'true'
1476   _llvm = 'enabled'
1477   warning('llvm option "true" deprecated, please use "enabled" instead.')
1478 elif _llvm == 'false'
1479   _llvm = 'disabled'
1480   warning('llvm option "false" deprecated, please use "disabled" instead.')
1481 endif
1482
1483 # the cmake method can only link statically, so don't attempt to use it if we
1484 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1485 # linking is requested, so we need to force the config-tool method to be used
1486 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1487 # linking is requested.
1488 _llvm_method = 'auto'
1489 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1490   _llvm_method = 'config-tool'
1491 endif
1492
1493 dep_llvm = null_dep
1494 with_llvm = false
1495 if _llvm != 'disabled'
1496   dep_llvm = dependency(
1497     'llvm',
1498     version : _llvm_version,
1499     modules : llvm_modules,
1500     optional_modules : llvm_optional_modules,
1501     required : (
1502       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1503       with_gallium_opencl or _llvm == 'enabled'
1504     ),
1505     static : not _shared_llvm,
1506     method : _llvm_method,
1507     fallback : ['llvm', 'dep_llvm'],
1508   )
1509   with_llvm = dep_llvm.found()
1510 endif
1511 if with_llvm
1512   pre_args += '-DLLVM_AVAILABLE'
1513   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1514
1515   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1516   # programs, so we need to build all C++ code in mesa without rtti as well to
1517   # ensure that linking works.
1518   #
1519   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1520   # builtin llvm-config based finder. A new generic variable getter method
1521   # has also been added, so we'll use that if we can, to cover the cmake case.
1522   if dep_llvm.type_name() == 'internal'
1523     _rtti = subproject('llvm').get_variable('has_rtti', true)
1524   else
1525     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1526     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1527   endif
1528   if not _rtti
1529     if with_gallium_nouveau
1530       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1531     elif with_gallium_opencl
1532       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1533     endif
1534     if cc.get_id() == 'msvc'
1535       cpp_args += '/GR-'
1536     else
1537       cpp_args += '-fno-rtti'
1538     endif
1539   endif
1540 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1541   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1542 elif with_gallium_opencl
1543   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1544 endif
1545
1546 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1547     (with_gallium_r600 and with_llvm))
1548   dep_elf = dependency('libelf', required : false)
1549   if not dep_elf.found()
1550     dep_elf = cc.find_library('elf')
1551   endif
1552 else
1553   dep_elf = null_dep
1554 endif
1555
1556 dep_glvnd = null_dep
1557 if with_glvnd
1558   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1559   pre_args += '-DUSE_LIBGLVND=1'
1560 endif
1561
1562 _valgrind = get_option('valgrind')
1563 if _valgrind == 'true'
1564   _valgrind = 'enabled'
1565   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1566 elif _valgrind == 'false'
1567   _valgrind = 'disabled'
1568   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1569 endif
1570 if _valgrind != 'disabled'
1571   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1572   if dep_valgrind.found()
1573     pre_args += '-DHAVE_VALGRIND'
1574   endif
1575 else
1576   dep_valgrind = null_dep
1577 endif
1578
1579 # pthread stubs. Lets not and say we didn't
1580
1581 if host_machine.system() == 'windows'
1582   # Prefer the winflexbison versions, they're much easier to install and have
1583   # better windows support.
1584
1585   prog_flex = find_program('win_flex', required : false)
1586   if prog_flex.found()
1587     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1588     # _fileno functions)
1589     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1590   else
1591     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1592   endif
1593   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1594   # __STDC__ macro to determine whether it's safe to use const keyword, but
1595   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1596   prog_flex += '-DYY_USE_CONST='
1597
1598   prog_bison = find_program('win_bison', required : false)
1599   if not prog_bison.found()
1600     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1601   endif
1602 else
1603   prog_bison = find_program('bison', required : with_any_opengl)
1604
1605   # Disable deprecated keyword warnings, since we have to use them for
1606   # old-bison compat.  See discussion in
1607   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1608   if find_program('bison', required : false, version : '> 2.3').found()
1609     prog_bison = [prog_bison, '-Wno-deprecated']
1610   endif
1611
1612   prog_flex = find_program('flex', required : with_any_opengl)
1613 endif
1614
1615 dep_selinux = null_dep
1616 if get_option('selinux')
1617   dep_selinux = dependency('libselinux')
1618   pre_args += '-DMESA_SELINUX'
1619 endif
1620
1621 _libunwind = get_option('libunwind')
1622 if _libunwind == 'true'
1623   _libunwind = 'enabled'
1624   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1625 elif _libunwind == 'false'
1626   _libunwind = 'disabled'
1627   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1628 endif
1629 if _libunwind != 'disabled'
1630   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1631   if dep_unwind.found()
1632     pre_args += '-DHAVE_LIBUNWIND'
1633   endif
1634 else
1635   dep_unwind = null_dep
1636 endif
1637
1638 if with_osmesa != 'none'
1639   if with_osmesa == 'gallium' and not with_gallium_softpipe
1640     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1641   endif
1642   if host_machine.system() == 'windows'
1643     osmesa_lib_name = 'osmesa'
1644   else
1645     osmesa_lib_name = 'OSMesa'
1646   endif
1647   osmesa_bits = get_option('osmesa-bits')
1648   if osmesa_bits != '8'
1649     if with_dri or with_glx != 'disabled'
1650       error('OSMesa bits must be 8 if building glx or dir based drivers')
1651     endif
1652     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1653     pre_args += [
1654       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1655     ]
1656   endif
1657 endif
1658
1659 # TODO: symbol mangling
1660
1661 if with_platform_wayland
1662   dep_wl_scanner = dependency('wayland-scanner', native: true)
1663   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1664   if dep_wl_scanner.version().version_compare('>= 1.15')
1665     wl_scanner_arg = 'private-code'
1666   else
1667     wl_scanner_arg = 'code'
1668   endif
1669   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1670   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1671   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1672   if with_egl
1673     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1674     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1675   endif
1676   wayland_dmabuf_xml = join_paths(
1677     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1678     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1679   )
1680   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1681 endif
1682
1683 dep_x11 = null_dep
1684 dep_xext = null_dep
1685 dep_xdamage = null_dep
1686 dep_xfixes = null_dep
1687 dep_x11_xcb = null_dep
1688 dep_xcb = null_dep
1689 dep_xcb_glx = null_dep
1690 dep_xcb_dri2 = null_dep
1691 dep_xcb_dri3 = null_dep
1692 dep_dri2proto = null_dep
1693 dep_glproto = null_dep
1694 dep_xxf86vm = null_dep
1695 dep_xcb_dri3 = null_dep
1696 dep_xcb_present = null_dep
1697 dep_xcb_sync = null_dep
1698 dep_xcb_xfixes = null_dep
1699 dep_xshmfence = null_dep
1700 dep_xcb_xrandr = null_dep
1701 dep_xlib_xrandr = null_dep
1702 if with_platform_x11
1703   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1704     dep_x11 = dependency('x11')
1705     dep_xext = dependency('xext')
1706     dep_xcb = dependency('xcb')
1707   elif with_glx == 'dri'
1708     dep_x11 = dependency('x11')
1709     dep_xext = dependency('xext')
1710     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1711     dep_xfixes = dependency('xfixes')
1712     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1713   endif
1714   if (with_any_vk or with_glx == 'dri' or with_egl or
1715        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1716         with_gallium_omx != 'disabled'))
1717     dep_xcb = dependency('xcb')
1718     dep_x11_xcb = dependency('x11-xcb')
1719     if with_dri_platform == 'drm' and not dep_libdrm.found()
1720       error('libdrm required for gallium video statetrackers when using x11')
1721     endif
1722   endif
1723   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1724     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1725
1726     if with_dri3
1727       pre_args += '-DHAVE_DRI3'
1728       dep_xcb_dri3 = dependency('xcb-dri3')
1729       dep_xcb_present = dependency('xcb-present')
1730       # until xcb-dri3 has been around long enough to make a hard-dependency:
1731       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1732           dep_xcb_present.version().version_compare('>= 1.13'))
1733         pre_args += '-DHAVE_DRI3_MODIFIERS'
1734       endif
1735       dep_xcb_sync = dependency('xcb-sync')
1736       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1737     endif
1738   endif
1739   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1740     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1741   endif
1742   if with_glx == 'dri'
1743     if with_dri_platform == 'drm'
1744       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1745       dep_xxf86vm = dependency('xxf86vm')
1746     endif
1747   endif
1748   if (with_egl or (
1749       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1750       with_gallium_omx != 'disabled'))
1751     dep_xcb_xfixes = dependency('xcb-xfixes')
1752   endif
1753   if with_xlib_lease
1754     dep_xcb_xrandr = dependency('xcb-randr')
1755     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1756   endif
1757 endif
1758
1759 if get_option('gallium-extra-hud')
1760   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1761 endif
1762
1763 _sensors = get_option('lmsensors')
1764 if _sensors == 'true'
1765   _sensors = 'enabled'
1766   warning('sensors option "true" deprecated, please use "enabled" instead.')
1767 elif _sensors == 'false'
1768   _sensors = 'disabled'
1769   warning('sensors option "false" deprecated, please use "disabled" instead.')
1770 endif
1771 if _sensors != 'disabled'
1772   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1773   if dep_lmsensors.found()
1774     pre_args += '-DHAVE_LIBSENSORS=1'
1775   endif
1776 else
1777   dep_lmsensors = null_dep
1778 endif
1779
1780 foreach a : pre_args
1781   add_project_arguments(a, language : ['c', 'cpp'])
1782 endforeach
1783 foreach a : c_args
1784   add_project_arguments(a, language : ['c'])
1785 endforeach
1786 foreach a : cpp_args
1787   add_project_arguments(a, language : ['cpp'])
1788 endforeach
1789
1790 gl_priv_reqs = []
1791
1792 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1793   gl_priv_reqs += ['x11', 'xext', 'xcb']
1794 elif with_glx == 'dri'
1795   gl_priv_reqs += [
1796     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1797     'xcb-glx >= 1.8.1']
1798   if with_dri_platform == 'drm'
1799     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1800     gl_priv_reqs += 'xxf86vm'
1801   endif
1802 endif
1803 if dep_libdrm.found()
1804   gl_priv_reqs += 'libdrm >= 2.4.75'
1805 endif
1806
1807 gl_priv_libs = []
1808 if dep_thread.found()
1809   gl_priv_libs += ['-lpthread', '-pthread']
1810 endif
1811 if dep_m.found()
1812   gl_priv_libs += '-lm'
1813 endif
1814 if dep_dl.found()
1815   gl_priv_libs += '-ldl'
1816 endif
1817
1818 pkg = import('pkgconfig')
1819
1820 if host_machine.system() == 'windows'
1821   prog_dumpbin = find_program('dumpbin', required : false)
1822   with_symbols_check = prog_dumpbin.found() and with_tests
1823   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1824 else
1825   prog_nm = find_program('nm')
1826   with_symbols_check = with_tests
1827   symbols_check_args = ['--nm', prog_nm.path()]
1828 endif
1829
1830 # This quirk needs to be applied to sources with functions defined in assembly
1831 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1832 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1833
1834 subdir('include')
1835 subdir('bin')
1836 subdir('src')
1837
1838 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1839 # formatting below unless the first argument is passed as a variable. This has
1840 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1841 # for backwards compatibility.
1842 _with_opengl_string = with_opengl ? 'yes' : 'no'
1843
1844 lines = ['',
1845   'prefix:          ' + get_option('prefix'),
1846   'libdir:          ' + get_option('libdir'),
1847   'includedir:      ' + get_option('includedir'),
1848   '',
1849   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1850                                                     with_gles1 ? 'yes' : 'no',
1851                                                     with_gles2 ? 'yes' : 'no'),
1852 ]
1853
1854 if with_osmesa != 'none'
1855   lines += ''
1856   suffix = ''
1857   if with_osmesa == 'gallium'
1858     suffix = '(Gallium)'
1859   endif
1860   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1861 else
1862   lines += 'OSMesa:          no'
1863 endif
1864
1865 if with_dri
1866   lines += ''
1867   lines += 'DRI platform:    ' + with_dri_platform
1868   if dri_drivers.length() != 0 and dri_drivers != ['']
1869     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1870   else
1871     lines += 'DRI drivers:     no'
1872   endif
1873   lines += 'DRI driver dir:  ' + dri_drivers_path
1874 endif
1875
1876 if with_glx != 'disabled'
1877   lines += ''
1878   if with_glx == 'dri'
1879     lines += 'GLX:             DRI-based'
1880   elif with_glx == 'xlib'
1881     lines += 'GLX:             Xlib-based'
1882   elif with_glx == 'gallium-xlib'
1883     lines += 'GLX:             Xlib-based (Gallium)'
1884   else
1885     lines += 'GLX:             ' + with_glx
1886   endif
1887 endif
1888
1889 lines += ''
1890 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1891 if with_egl
1892   egl_drivers = []
1893   if with_dri
1894     egl_drivers += 'builtin:egl_dri2'
1895   endif
1896   if with_dri3
1897     egl_drivers += 'builtin:egl_dri3'
1898   endif
1899   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1900 endif
1901 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1902 if _platforms.length() != 0
1903   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1904 endif
1905
1906 lines += ''
1907 if with_any_vk
1908   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1909   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1910 else
1911   lines += 'Vulkan drivers:  no'
1912 endif
1913
1914 lines += ''
1915 if with_llvm
1916   lines += 'llvm:            yes'
1917   lines += 'llvm-version:    ' + dep_llvm.version()
1918 else
1919   lines += 'llvm:            no'
1920 endif
1921
1922 lines += ''
1923 if with_gallium
1924   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1925   gallium_st = ['mesa']
1926   if with_gallium_xa
1927     gallium_st += 'xa'
1928   endif
1929   if with_gallium_xvmc
1930     gallium_st += 'xvmc'
1931   endif
1932   if with_gallium_xvmc
1933     gallium_st += 'xvmc'
1934   endif
1935   if with_gallium_vdpau
1936     gallium_st += 'vdpau'
1937   endif
1938   if with_gallium_omx != 'disabled'
1939     gallium_st += 'omx' + with_gallium_omx
1940   endif
1941   if with_gallium_va
1942     gallium_st += 'va'
1943   endif
1944   if with_gallium_st_nine
1945     gallium_st += 'nine'
1946   endif
1947   if with_gallium_opencl
1948     gallium_st += 'clover'
1949   endif
1950   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1951 else
1952   lines += 'Gallium:         no'
1953 endif
1954
1955 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1956
1957 lines += ''
1958 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1959
1960
1961 indent = '        '
1962 summary = indent + ('\n' + indent).join(lines)
1963 message('Configuration summary:\n@0@\n'.format(summary))